994529378 has 4 divisors (see below), whose sum is σ = 1491794070. Its totient is φ = 497264688.

The previous prime is 994529377. The next prime is 994529387. The reversal of 994529378 is 873925499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873925499 = 491 ⋅1779889.

It can be written as a sum of positive squares in only one way, i.e., 573746209 + 420783169 = 23953^2 + 20513^2 .

It is not an unprimeable number, because it can be changed into a prime (994529377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248632343 + ... + 248632346.

Almost surely, 2^994529378 is an apocalyptic number.

994529378 is a deficient number, since it is larger than the sum of its proper divisors (497264692).

994529378 is a wasteful number, since it uses less digits than its factorization.

994529378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497264691.

The product of its digits is 4898880, while the sum is 56.

The square root of 994529378 is about 31536.1598486563. The cubic root of 994529378 is about 998.1731238894.

The spelling of 994529378 in words is "nine hundred ninety-four million, five hundred twenty-nine thousand, three hundred seventy-eight".